Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
  • A61K8/35—Ketones, e.g. benzophenone
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
  • A61K8/37—Esters of carboxylic acids
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
  • A61K8/494—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with more than one nitrogen as the only hetero atom
  • A61K8/4966—Triazines or their condensed derivatives
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
  • A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/49—Solubiliser, Solubilising system

Definitions

• Solubilizing agents for UV filters in cosmetic formulations Description
• the present invention relates to the use of specific oligohydroxy carboxylic acids as solubilizing agents for dissolving organic UV filters and the use of these compounds in cosmetically acceptable products for improved protection against UV radiation as well as cosmetic formulations exhibiting enhanced UV protection performance.
• the present invention relates to improved formulations of oil-soluble crystalline organic UV absorbers.
• an effective sunscreen formulation preferably comprises both at least one UV-A, UV-B filter and a broad band UV filter covering the full range of about 290 nm to about 400 nm to prevent the human skin from damaging by the sunlight.
• Very effective organic UV filters are the classes of benzophenone derivatives, hydroxyphenyl triazine derivatives and trianilino-s-triazine derivatives.
• UV absorber have a poor oil-solubility at a certain concentration and tend to crystallization. Consequently, the UV protection efficacy is significantly decreased.
• oil soluble UV filters should be included in cosmetic sun care products, preferably emulsions, without any impact on the sensorial characteristic of the emulsion. For this reason, the optimal distribution of the UV absorber within the hydro-lipid film left on the skin after spreading should be guaranteed. It is therefore an object of the present invention to find UV absorber formulations which have improved properties regarding the UV absorber. Surprisingly it was found that certain oligohydroxy carboxylic acids guarantee optimal distribution of the organic UV absorber within the hydro-lipid film of the UV absorber formulation left on the skin after spreading and promotes the highest degree of solubilization of the organic UV absorber.
• the present invention relates to the use of the compounds (A) corresponding to formula
• R 1 is hydrogen; a linear or branched C1-C30 aliphatic hydrocarbon residue comprising 0, 1 , 2 or 3 double bonds;
• R 2 independently from each other are hydrogen; methyl; ethyl; -OH; -COOR 4 ; -CH2-OH; and
• R 4 is hydrogen; or a linear or branched C1-C30 aliphatic hydrocarbon residue comprising 0, 1 , 2 or 3 double bonds;
• R 3 independently from each other are hydrogen; methyl; ethyl; -OH; -COOR 5 ; -CH2-OH; and
• R 5 is hydrogen; or a linear or branched C1-C30 aliphatic hydrocarbon residue comprising 0, 1 , 2 or 3 double bonds;
• n is at least 0, 1 on average
• nl and m2 independently from each other are 0; or 1 ;
• radicals R 1 , R 4 or R 5 represent a linear or branched
• the compounds of formula (1 ) may be present in form of mixtures or as single compounds.
• mixtures of the compound of formula (1 ) are suitable in general.
• the single components of these mixtures may for example differ with regard to the oligomerization degree.
• hydroxy carboxylic acids are used for the preparation of the compounds of formula (1 ), which comprise more than one carboxylic group and/or more than one alcoholic OH-group, also structural isomerics resulting from the esterification reaction are suitable as single components for these mixtures.
• the average oligomerization degree for the compounds of formula (1 ) may be calculated by addition of the number 1 to the value of the variables n.
• Suitable linear or branched aliphatic C1-C30 hydrocarbon radicals and 0, 1 , 2 or 3 double bonds are the corresponding Ci-C3oalkyl radicals, C2-C3oalkenyl radicals, C3-C3oalkadienyl radicals and C4-C3oalkatrienyl radicals.
• At least one of the radicals R 1 , R 4 or R 5 is a linear or branched aliphatic C6-C30 hydrocarbon radical and 0, 1 , 2 or 3 double bonds.
• R 1 , R 4 and R 5 independently from each other are selected from methyl, ethyl, propyl, isopropyl, n-butyl, 2-butyl, sec.
• At least one of the radicals R 1 , R 4 and R 5 is methyl; ethyl; n-propyl; isopropyl; n-butyl; isobutyl; sec-butyl; tert.-butyl; n-pentyl; isoamyl; n-hexyl; 2-ethylhexyl; n-heptyl; n-octyl; n-nonyl, n-decyl, 2-propylheptyl, n-undecyl, n-dodecyl, n-tridecyl, n-tetradecyl, n-pentadecyl; n-hexadecyl; n-heptadecyl; n-octadecyl; n-nonadecyl; arachinyl; behenyl; lingoceri
• At least one of the radicals R 1 , R 4 or R 5 is a linear or branched aliphatic C6-C30 hydrocarbon radical and 0, 1 , 2 or 3 double bonds.
• R 1 , R 4 and R 5 independently from each other are selected from n-hexyl, 2-ethylhexyl, n-heptyl, n-octyl, n-nonyl, n- decyl, n-undecyl, n-dodecyl, n-tridecyl, n-Tetradecyl, n-pentadecyl, n-hexadecyl, n-heptadecyl, n-octadecyl, n-nonadecyl, arachinyl, behenyl, lignocerinyl, melissinyl, isotridecyl, isostearyl,
• R 1 , R 4 and R 5 in this case independently from each other are selected from predominantly linear alkyl-, alkenyl-, alkadienyl- and alkatrienyl radicals according to their frequency in natural or synthetic fatty acids and the corresponding fatty alcohols.
• R 1 , R 4 and R 5 independently from each other are derived from fatty alcohols, which are based on technical alcohol mixtures like the alcohol mixtures resulting from the hydration of technical methyl esters on the base of fats and oils including alcohol mixtures accumulating at the hydration of aldehydes from the oxo synthesis or alcohol mixtures accumulating from the dimerization of unsaturated fatty alcohols.
• one of the radicals R 1 , R 4 und R 5 is derived from saturated linear Ce-C-ie hydro carbons.
• At least one of the radicals R 1 , R 4 and R 5 is derived from a mixture of linear saturated Ci2-Ci4-alkohols. Furthermore, at least one of the radicals R 1 , R 4 and R 5 is derived from a Ci6-/Cisfatty alcohol mixture. Mixtures from cetyl (hexadecyl) and stearyl (octadecyl) are called cetearyl.
• ml and m2 have the same mean
• the compounds of formula (1 ) represent ester of oligohydroxy carboxylic acids. These compounds can be derived from commercial hydroxy carboxylic acids like lactic acid, glycolic acid, malic acid, tartaric acid, tartronic acid and mixtures thereof.
• R 1 is hydrogen; or a linear or branched C1-C30 aliphatic hydrocarbon residue comprising 0,
• n is at least 0, 1 on average.
• the compounds of formula (1 ) and (2) are derived from lactic acid, glycolic acid, malic acid, tartaric acid or mixtures thereof.
• n is preferably a number from 0, 1 to 100, most preferably from 0, 15 bis 50, especially from 0,2 to 20.
• the compounds of formula (1 ) are preferably prepared by an estenfication reaction wherein the estenfication is carried out in the presence of an alcohol R 1 -OH, wherein
• R 1 is hydrogen; or a linear or branched aliphatic C1-C30 hydrocarbon and 0, 1 , 2 or 3
• Preferred benzophenone derivatives (B1 ) correspond to the formula
• Ri and R2 independently from each other are hydrogen; Ci-C2oalkyl; C3-Ciocycloalkyl; or C3- docycloalkenyl, wherein the radicals Ri and R2 together with the nitrogen atom, to which they are bonded may form a 5- or 6-membered ring; and
• R 3 is Ci-C 20 alkyl.
• Most preferred benzophenone derivatives (B1 ) according to the present invention correspond to the formula
• Preferred hydroxyphenyl triazine derivatives (B2) according to the present invention correspond to formula
• Ri and R 2 independently from each other are Ci-Ciealkyl
• R3 is Ci-Cioalkoxy.
• hydroxyphenyl triazine derivatives (B2) as used in the present invention can be prepared by manners known per se, as described for example in EP 775698 B1.
• Preferred trianilino-s-triazine derivatives (B3) correspond to the formula
• Ri, R2 and R3 independently from each other are optionally substituted Ci-C2oalkyl, C6-
• X is O; or NR 4 ;
• R 4 is hydrogen; or optionally substituted Ci-C2oalkyl, aryl or heteroaryl.
• the organic UV filters (B) according to the present invention are used as mixtures.
• mixtures of UV filters (BPH-02), (HTP-02) and (TAT-02) are used.
• R 1 is hydrogen; or a linear or branched C1-C30 aliphatic hydrocarbon residue comprising 0,
• n is at least 0, 1 on average; is used as solubilizing agent (A) for the UV filters (B) selected from (BPH-02), (HTP-02) and (TAT-02).
• the present invention relates to a cosmetic composition, which preferably comprises
• R 1 is hydrogen; a linear or branched C1-C30 aliphatic hydrocarbon residue comprising 0, 1 , 2 or 3 double bonds;
• R 2 independently from each other are hydrogen; methyl; ethyl, -OH; -COOR 4 ; -CH2-OH;
• R 4 is hydrogen; or a linear or branched C1-C30 aliphatic hydrocarbon residue
• R 3 independently from each other are hydrogen; methyl; ethyl; -OH; -COOR 5 ; - CH2-OH; and -CH2-COOR 5 ;
• R 5 is hydrogen; or a linear or branched C1-C30 aliphatic hydrocarbon residue
• n is at least 0, 1 ;
• nl and m2 independently from each other are 0; or 1 ;
• radicals R 1 , R 4 or R 5 are a linear or branched
• organic UV filters selected from
• solubilizing agent (A) in the cosmetic composition according to the present invention corresponds to formula
• the cosmetic composition of the present invention preferably comprises
• the cosmetic composition comprises
• organic UV filters selected from (HTP-02), (BPH-02) and (TAT-02).
• A a solubilizing agent of formula (2) and (B) mixtures of UV filters (HTP-02), (BPH- 02) and (TAT-02).
• R 1 is hydrogen; or a linear or branched C1-C30 aliphatic hydrocarbon residue comprising 0,
• n is at least 0, 1 on average
• solubilizing agent (A) for the UV filters (B) selected from (BPH-02) as claimed in claim 10, (HTP-02) as claimed in claim 12 and (TAT-02) as claimed in claim 15.
• the cosmetic composition according to the present invention may comprise one or more than one additional UV absorbers (component (D)) as described in the Tables 1 and 2.
• Table 1 Suitable UV filter substances which can be additionally used with the organic UV absorbers (B) according to the present invention
• p-aminobenzoic acid derivatives for example 4-dimethylaminobenzoic acid 2-ethylhexyl ester;
• salicylic acid derivatives for example salicylic acid 2-ethylhexyl ester
• benzophenone derivatives for example 2-hydroxy-4-methoxybenzophenone and its 5-sulfonic acid derivative
• diphenylacrylates for example 2-ethylhexyl 2-cyano-3,3-diphenylacrylate, and 3-(benzo- furanyl) 2-cyanoacrylate;
• benzofuran derivatives especially 2-(p-aminophenyl)benzofuran derivatives, described in EP-A-582 189, US-A-5 338 539, US-A-5 518 713 and EP-A-613 893;
• polymeric UV absorbers for example the benzylidene malonate derivatives described in EP-A-709 080;
• cinnamic acid derivatives for example the 4-methoxycinnamic acid 2-ethylhexyl ester and isoamyl ester or cinnamic acid derivatives described in US-A-5 601 81 1 and WO 97/00851 ; camphor derivatives, for example 3-(4'-methyl)benzylidene-bornan-2-one, 3-benzylidene- bornan-2-one, N-[2(and 4)-2-oxyborn-3-ylidene-methyl)-benzyl]acrylamide polymer, 3-(4'- trimethylammonium)-benzylidene-bornan-2-one methyl sulfate, 3,3'-(1 ,4-phenylene- dimethine)-bis(7,7-dimethyl-2-oxo-bicyclo[2.2.1 ]heptane-1-methanesulfonic acid) and salts, 3-(4'-sulfo)benzylidene-bornan
• UV absorbers (B) according to the present invention
• UV absorbers (B) according to the present invention
• UV absorbers (B) according to the present invention
• the cosmetic composition according to the present invention can be prepared by physically mixing the UV filter(s) (B) with the adjuvant using customary methods, for example by simply stirring together the individual components, especially by making use of the dissolution properties of already known cosmetic UV filters, like octyl methoxy cinnamate, salicylic acid isooctyl ester, etc..
• the UV filter (B) can be used, for example, without further treatment, or in the micronized state, or in the form of a powder.
• compositions/preparations according to the invention may also contain one or one more additional compounds as described below.
• ester oils are isopropylmyristate, isopropylpalmitate, isopropylstearate, iso- propyl isostearate, isopropyloleate, n-butylstearate, n-hexyllaurate, n-decyloleate, isooctyl- stearate, iso-nonylstearate, isononyl isononanoate, 2-ethylhexylpalmitate, 2-hexyllaurate, 2- hexyldecylstearate, 2-octyldodecylpalmitate, oleyloleate, oleylerucate, erucyloleate, erucyl- erucate, cetearyl octanoate, cetyl palmitate, cetyl stearate, cetyl oleate, cetyl behenate, cetyl acetate
• Di- or tri-glycerides based on C6-C18 fatty acids, modified by reaction with other alcohols (caprylic/capric triglyceride, wheat germ glycerides, etc.).
• Fatty acid esters of polyglycerin polyglyceryl-n such as polyglyceryl-4 caprate, polyglyceryl-2 isostearate, etc.
• castor oil hydrogenated vegetable oil, sweet almond oil, wheat germ oil, sesame oil, hydrogenated cottonseed oil, coconut oil, avocado oil, corn oil, hydrogenated castor oil, shea butter, cocoa butter, soybean oil, mink oil, sunflower oil, safflower oil, macadamia nut oil, olive oil, hydrogenated tallow, apricot kernel oil, hazelnut oil, borago oil, etc.
• Waxes including esters of long-chain acids and alcohols as well as compounds having wax- like properties, e.g., carnauba wax, beeswax (white or yellow), lanolin wax, candellila wax, ozokerite, japan wax, paraffin wax, microcrystalline wax, ceresin, cetearyl esters wax, synthetic beeswax,etc. Also, hydrophilic waxes as Cetearyl Alcohol or partial glycerides.
• Alkylene glycol esters especially ethylene glycol distearate; fatty acid alkanolamides, especially coco fatty acid diethanolamide; partial glycerides, especially stearic acid monoglyceride; esters of polyvalent, unsubstituted or hydroxy-substituted carboxylic acids with fatty alcohols having from 6 to 22 carbon atoms, especially long-chained esters of tartaric acid; fatty substances, for example fatty alcohols, fatty ketones, fatty aldehydes, fatty ethers and fatty carbonates, which in total have at least 24 carbon atoms, especially laurone and distearyl ether; fatty acids, such as stearic acid, hydroxystearic acid or behenic acid, ring-opening products of olefin epoxides having from 12 to 22 carbon atoms with fatty alcohols having from 12 to 22 carbon atoms and/or polyols having from 2 to 15 carbon atoms and from 2 to 10
• Mineral oil (light or heavy), petrolatum (yellow or white), microcrystalline wax, paraffinic and isoparaffinic compounds, hydrogenated isoparaffinic molecules as polydecenes and polybu- tene, hydrogenated polyisobutene, squalane, isohexadecane, isododecane and others from plant and animal kingdom.
• Silicones or siloxanes (orqanosubstituted polvsiloxanes)
• simethicones which are mixtures of dimethicones having an average chain length of from 200 to 300 dimethylsiloxane units with hydrogenated silicates.
• a detailed survey by Todd et al. of suitable volatile silicones may in addition be found in Cosm. Toil. 91 , 27 (1976).
• Perfluorhexane dimethylcyclohexane, ethylcyclopentane, polyperfluoromethylisopropyl ether.
• Emulsifier systems may comprise for example: carboxylic acids and their salts: alkaline soap of sodium, potassium and ammonium, metallic soap of calcium or magnesium, organic basis soap such as Why, palmitic, stearic and oleic acid etc... Alkyl phosphates or phosphoric acid esters, acid phosphate, diethanolamine phosphate, potassium cetyl phosphate. Ethoxylated carboxylic acids or polyethyleneglycol esters, PEG-n acylates.
• Linear fatty alcohols having from 8 to 22 carbon atoms, branched from 2 to 30 mol of ethylene oxide and/or from 0 to 5 mol propylene oxide with with fatty acids having from 12 to 22 carbon atoms and with alkylphenols having from 8 to 15 carbon atoms in the alkyl group.
• Fatty alcohol polyglycol- ether such as laureth-n, ceteareth-n, steareth-n, oleth-n.
• Fatty acid polyglycolether such as PEG-n stearate, PEG-n oleate, PEG-n cocoate.
• Monoglycerides and polyol esters Monoglycerides and polyol esters.
• Fatty acid and polyglycerol ester such as monostearate glycerol, diisostearoyl polyglyceryl-3-diisostearates, polyglyceryl-3-diisostearates, triglyceryl diisostearates, polyglyceryl-2-sesquiisostearates or polyglyceryl dimerates. Mixtures of compounds from a plurality of those substance classes are also suitable.
• Fatty acid polyglycolesters such as monostearate diethylene glycol, fatty acid and polyethylene glycol esters, fatty acid and saccharose esters such as sucro esters, glycerol and saccharose esters such as sucro glycerides.
• Sorbitol and sorbitan sorbitan mono- and di-esters of saturated and unsaturated fatty acids having from 6 to 22 carbon atoms and ethylene oxide addition products.
• Polysor- bate-n series, sorbitan esters such as sesquiisostearate, sorbitan, PEG-(6)-isostearate sorbitan, PEG-(10)-sorbitan laurate, PEG-17- dioleate sorbitan.
• Glucose derivatives C8-C22 alkyl-mono and oligo-glycosides and ethoxylated analogues with glucose being preferred as the sugar component.
• O/W emulsifiers such as methyl gluceth-20 sesquistearate, sorbitan stearate/sucrose cocoate, methyl glucose sesquistearate, cetearyl alcohol/cetearyl gluco- side.
• W/O emulsifiers such as methyl glucose dioleate/ methyl glucose isostearate.
• Sulfates and sulfonated derivatives dialkylsulfosuccinat.es, dioctyl succinate, alkyl lauryl sulfonate, linear sulfonated parafins, sulfonated tetraproplyne sulfonate, sodium lauryl sulfates, amo- nium and ethanolamine lauryl sulfates, lauyl ether sulfates, sodium laureth sulfates, sulfosuc- cinates, aceyl isothionates, alkanolamide sulfates, taurines, methyl taurines, imidazole sulfates.
• CBA cetyltrimethyl- broide amonium broide
• Amide derivatives alkanolamides such as acylamide DEA, ethoxylated amides such as PEG-n acylamide, oxydeamide; polysiloxane/- polyalkyl/polyether copolymers and derivatives, dimethicone, copolyols, silicone polyethylene oxide copolymer, silicone glycol copolymer; propoxylated or POE-n ethers (Meroxapols); polaxamers or poly(oxyethylene)m-block-poly(oxypropylene)n-block(oxyethylene); zwitter- ionic surfactants that carry at least one quaternary ammonium group and at least one car- boxylate and/or sulfonate group in the molecule.
• alkanolamides such as acylamide DEA, ethoxylated amides such as PEG-n acylamide, oxydeamide
• Zwitterionic surfactants that are especially suitable are betaines, such as N-alkyl-N,N-dimethylammonium glycinates, cocoalkyldimethyl- ammonium glycinate, N-acylaminopropyl-N,N-dimethylammonium glycinates, cocoacyl- aminopropyldimethylammonium glycinate and 2-alkyl-3-carboxymethyl-3-hydroxyethyl- imidazolines each having from 8 to 18 carbon atoms in the alkyl or acyl group and also coco- acylaminoethylhydroxyethylcarboxymethylglycinate, N-alkylbetaine, N-alkylaminobetaines.
• betaines such as N-alkyl-N,N-dimethylammonium glycinates, cocoalkyldimethyl- ammonium glycinate, N-acylaminopropyl-N,N-dimethyl
• Non ionic emulsifiers such as PEG-6 beeswax (and) PEG-6 stearate (and) polyglyceryl - 2-isostearate [Apifac], glyceryl stearate (and) PEG-100 stearate. [Arlacel 165], PEG-5 glyceryl stearate [arlatone 983 S], sorbitan oleate (and) polyglyceryl-3 ricinoleate.
• cetearyl alcohol and PEG-40 castor oil and sodium cetearyl sulfate [Emulgade F], stearyl alcohol and steareth-7 and steareth-10 [Emulgator E 2155], cetearyl alcohol and szeareth-7 and steareth-10 [Emulsifying wax U.S.N.F], glyceryl stearate and PEG-75 stearate [Gelot 64], propylene glycol ceteth-3 acetate .[Hetester PCS], propylene glycol isoceth-3 acetate [Hetester PHA], cetearyl alcohol and ceteth-12 and oleth-12 [Lanbritol Wax N 21], PEG -6 stearate and PEG-32 stearate [Tefose 1500], PEG-6 stearate and ceteth-20 and steareth-20 [Tefose 2000], PEG-6 stearate and ceteth-20 and glyceryl ste
• Anionic emulsifiers such as PEG-2 stearate SE, glyceryl stearate SE [Monelgine, Cutina KD], propylene glycol stearate [Tegin P], cetearyl Alcohol and Sodium cetearyl sulfate [Lanette N, Cutina LE, Crodacol GP], cetearyl alcohol and sodium lauryl sulfate [Lanette W], trilaneth-4 phopshate and glycol stearate and PEG-2 stearate [Sedefos 75], glyceryl stearate and sodium lauryl Sulfate [Teginacid Special].
• Cationic acid bases such as cetearyl alcohol and cetrimonium bromide.
• the emulsifiers may be used in an amount of, for example, from 1 to 30 % by weight, especially from 4 to 20 % by weight and preferably from 5 to 10 % by weight, based on the total weight of the composition.
• the preferably amount of such emulsifier system could represent 5% to 20% of the oil phase.
• the cosmetic / pharmaceutical preparations for example creams, gels, lotions, alcoholic and aqueous/alcoholic solutions, emulsions, wax/fat compositions, stick preparations, powders or ointments, may in addition contain, as further adjuvants and additives, mild surfactants, super-fatting agents, consistency regulators, thickeners, polymers, stabilisers, biogenic active ingredients, deodorising active ingredients, anti-dandruff agents, film formers, swelling agents, further UV light-protective factors, antioxidants, hydrotropic agents, preservatives, insect repellents, self-tanning agents, solubilisers, perfume oils, colourants, bacteria- inhibiting agents and the like.
• super-fatting agents for example creams, gels, lotions, alcoholic and aqueous/alcoholic solutions, emulsions, wax/fat compositions, stick preparations, powders or ointments
• Substances suitable for use as super-fatting agents are, for example, lanolin and lecithin and also polyethoxylated or acrylated lanolin and lecithin derivatives, polyol fatty acid esters, monoglycerides and fatty acid alkanolamides, the latter simultaneously acting as foam stabilisers.
• Suitable mild surfactants include fatty alcohol polyglycol ether sulfates, monoglyceride sulfates, mono- and/or di-alkyl sulfosuccinates, fatty acid isethionates, fatty acid sarcosinates, fatty acid taurides, fatty acid glutamates, ⁇ -olefin sulfonates, ethercarboxylic acids, alkyl oligoglucosides, fatty acid glucamides, alkylamidobetaines and/or protein fatty acid condensation products, the latter preferably being based on wheat proteins.
• Silicium dioxide magnesium silicates, aluminium silicates, polysaccharides or derivatives thereof for example hyaluronic acid, xanthan gum, guar-guar, agar-agar, alginates, carra- ghenan, gellan, pectines, or modified cellulose such as hydroxycellulose, hydroxypropyl- methylcellulose.
• polyacrylates or homopolymer of reticulated acrylic acids and polyacrylamides carbomer (carbopol types 980, 981 , 1382, ETD 2001 , ETD2020, Ultrez 10) or Salcare range such as Salcare SC80(steareth-10 allyl ether/acrylates copolymer), Salcare SC81 (acrylates copolymer), Salcare SC91 and Salcare AST(sodium acrylates copoly- mer/PPG-1 trideceth-6), sepigel 305(polyacrylamide/laureth-7), Simulgel NS and Simulgel EG (hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer), Stabilen 30
• Salcare SC80 steareth-10 allyl ether/acrylates copolymer
• Salcare SC81 acrylates copolymer
• Suitable cationic polymers are, for example, cationic cellulose derivatives, for example a qua- ternised hydroxymethyl cellulose obtainable under the name Polymer JR 400 from Amerchol, cationic starches, copolymers of diallylammonium salts and acrylamides, quarternised vinyl- pyrrolidone/vinyl imidazole polymers, for example Luviquat ® (BASF), condensation products of polyglycols and amines, quaternised collagen polypeptides, for example lauryldimonium hydroxypropyl hydrolyzed collagen (Lamequat ® L/Grijnau), quaternised wheat polypeptides, polyethyleneimine, cationic silicone polymers, for example amidomethicones, copolymers of adipic acid and dimethylaminohydroxypropyldiethylenetriamine (Cartaretin/Sandoz), copolymers of acrylic acid with dimethyldiallylammonium chloride (Merqua
• anionic, zwitterionic, amphoteric and non-ionic polymers there come into consideration, for example, vinyl acetate / crotonic acid copolymers, vinylpyrrolidone / vinyl acrylate copolymers, vinyl acetate / butyl maleate / isobornyl acrylate copolymers, methyl vinyl ether / maleic anhydride copolymers and esters thereof, uncrosslinked polyacrylic acids and polyacrylic acids crosslinked with polyols, acrylamidopropyl-trimethylammonium chloride /acrylate copolymers, octyl acrylamide/methyl methacrylatetert-butylaminoethyl methacrylate/2- hydroxypropyl methacrylate copolymers, polyvinylpyrrolidone, vinylpyrrolidone/vinyl acetate copolymers, vinylpyrrolidone/dimethylaminoethyl methacrylate/vinyl cap
• Biogenic active ingredients are to be understood as meaning, for example, tocopherol, tocopherol acetate, tocopherol palmitate, ascorbic acid, deoxyribonucleic acid, retinol, bisabolol, allantoin, phytantriol, panthenol, AHA acids, amino acids, ceramides, pseudoceramides, essential oils, plant extracts and vitamin complexes.
• deodorising active ingredients there come into consideration, for example, antiperspi- rants, for example aluminium chlorohyd rates (see J. Soc. Cosm. Chem. 24, 281 (1973)). Under the trade mark Locron ® of Hoechst AG, Frankfurt (FRG), there is available comer- daily, for example, an aluminium chlorohydrate corresponding to formula AI 2 (OH) 5 CI x 2.5 H2O, the use of which is especially preferred (see J. Pharm. Pharmacol. 26, 531 (1975)). Besides the chlorohydrates, it is also possible to use aluminium hydroxyacetates and acidic aluminium/zirconium salts. Esterase inhibitors may be added as further deodorising active ingredients.
• Such inhibitors are preferably trialkyl citrates, such as trimethyl citrate, tripropyl citrate, triisopropyl citrate, tributyl citrate and especially triethyl citrate (Hydagen CAT, Hen- kel), which inhibit enzyme activity and hence reduce odour formation.
• trialkyl citrates such as trimethyl citrate, tripropyl citrate, triisopropyl citrate, tributyl citrate and especially triethyl citrate (Hydagen CAT, Hen- kel), which inhibit enzyme activity and hence reduce odour formation.
• esterase inhibitors are sterol sulfates or phosphates, for example lanosterol, cholesterol, campesterol, stigmasterol and sitosterol sulfate or phosphate, dicarboxylic acids and esters thereof, for example glutaric acid, glutaric acid mono- ethyl ester, glutaric acid diethyl ester, adipic acid, adipic acid monoethyl ester, adipic acid diethyl ester, malonic acid and malonic acid diethyl ester and hydroxycarboxylic acids and esters thereof, for example citric acid, malic acid, tartaric acid or tartaric acid diethyl ester.
• dicarboxylic acids and esters thereof for example glutaric acid, glutaric acid mono- ethyl ester, glutaric acid diethyl ester, adipic acid, adipic acid monoethyl ester, adipic acid diethyl ester, malonic
• Antibacterial active ingredients that influence the germ flora and kill or inhibit the growth of sweat-decomposing bacteria can likewise be present in the preparations (especially in stick preparations).
• Examples include chitosan, phenoxyethanol and chlorhexidine gluconate.
• 5- chloro-2-(2,4-dichlorophenoxy)-phenol Triclosan, Irgasan, Ciba Specialty Chemicals Inc. has also proved especially effective.
• Customary film formers include, for example, chitosan, microcrystalline chitosan, qua- ternised chitosan, polyvinylpyrrolidone, vinylpyrrolidone/vinyl acetate copolymers, polymers of quaternary cellulose derivatives containing a high proportion of acrylic acid, collagen, hyaluronic acid and salts thereof and similar compounds.
• antioxidants are amino acids (e.g. glycine, histidine, tyrosine, tryptophan) and derivatives thereof, imidazoles (e.g. urocanic acid) and derivatives thereof, peptides, such as D,L-carnosine, D-carnosine, L-carnosine and derivatives thereof (e.g. anserine), carotinoids, carotenes, lycopene and derivatives thereof, chlorogenic acid and derivatives thereof, lipoic acid and derivatives thereof (e.g.
• thiols e.g. thioredoxin, glutathione, cysteine, cystine, cystamine and the glycosyl, N-acetyl, methyl, ethyl, propyl, amyl, butyl, lauryl, palmitoyl, oleyl, linoleyl, cholesteryl and glyceryl esters thereof
• salts thereof dilauryl thiodipropionate, distearyl thiodipropionate, thiodi- propionic acid and derivatives thereof (esters, ethers, peptides, lipids, nucleotides, nucleosides and salts) and also sulfoximine compounds (e.g.
• buthionine sulfoximines homocysteine sulfoximine, buthionine sulfones, penta-, hexa-, hepta-thionine sulfoximine
• metal chelating agents e.g. hydroxy fatty acids, palmitic acid phytic acid, lactoferrin), hydroxy acids (e.g. citric acid, lactic acid, malic acid), humic acid, bile acid, bile extracts, bilirubin, bili- verdin, EDTA, EDDS, EGTA and derivatives thereof, unsaturated fatty acids and derivatives thereof (e.g.
• vitamin C and derivatives e.g. ascorbyl palmi- tate, magnesium ascorbyl phosphate, ascorbyl acetate), tocopherols and derivatives (e.g. vitamin E acetate), vitamin A and derivatives (e.g.
• vitamin A palmitate and also coniferyl benzoate of benzoin resin, rutinic acid and derivatives thereof, glycosylrutin, ferulic acid, furfurylidene glucitol, carnosine, butyl hydroxytoluene, butyl hydroxyanisole, nordihydrogu- aiaretic acid, trihydroxybutyrophenone, uric acid and derivatives thereof, mannose and derivatives thereof, superoxide dismutase, N-[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propio- nyl]sulfanilic acid (and salts thereof, for example the disodium salts), zinc and derivatives thereof (e.g.
• hydrotropic agents for example ethoxylated or non ethoxylated mono-alcohols, diols or polyols with a low number of carbon atoms or their ethers (e.g.
• ethanol isopropanol, 1 ,2-dipropanediol, propyleneglycol, glyerin, ethylene glycol, ethylene glycol monoethylether, ethylene glycol monobutylether, propylene glycol monomethylether, propylene glycol monoethylether, propylene glycol monobutylether, diethylene glycol monomethylether; diethylene glycol monoethylether, diethylene glycol monobutylether and similar products).
• the polyols that come into consideration for that purpose have preferably from 2 to 15 carbon atoms and at least two hydroxy groups.
• the polyols may also contain further functional groups, especially amino groups, and/or may be modified with nitrogen.
• Typical examples are as follows: glycerol, alkylene glycols, for example ethylene glycol, diethylene glycol, propylene glycol, butylene glycol, hexylene glycol and also polyethylene glycols having an average molecular weight of from 100 to 1000 Dalton; technical oligoglycerol mixtures having an intrinsic degree of condensation of from 1.5 to 10, for example technical diglycerol mixtures having a diglycerol content of from 40 to 50 % by weight; methylol compounds, such as, especially, trimethylolethane, trimethylol- propane, trimethylolbutane, pentaerythritol and dipentaerythritol; lower alkyl-glucosides, especially those having from 1 to 8 carbon atoms in the alkyl radical, for example methyl and butyl glucoside; sugar alcohols having from 5 to 12 carbon atoms, for example sorbitol or mannitol; sugars having from 5 to 12 carbon atoms,
• Suitable preservatives include, for example, Methyl-, Ethyl-, Propyl-, Butyl- parabens, Benzal- konium chloride, 2-Bromo-2-nitro-propane-1 ,3-diol, Dehydroacetic acid, Diazolidinyl Urea, 2- Dichloro-benzyl alcohol, DMDM hydantoin, Formaldehyde solution, Methyldibromoglu- tanitrile, Phenoxyethanol, Sodium Hydroxymethylglycinate, Imidazolidinyl Urea, Triclosan and further substance classes listed in the following reference: K.F.DePolo - A short textbook of cosmetology, Chapter 7, Table 7-2, 7-3, 7-4 and 7-5, p210-219.
• bacteria-inhibiting agents are preservatives that have a specific action against gram-positive bacteria, such as 2,4,4'-trichloro-2'-hydroxydiphenyl ether, chlorhexi- dine (1 ,6-di(4-chlorophenyl-biguanido)hexane) or TCC (3,4,4'-trichlorocarbanilide).
• gram-positive bacteria such as 2,4,4'-trichloro-2'-hydroxydiphenyl ether, chlorhexi- dine (1 ,6-di(4-chlorophenyl-biguanido)hexane) or TCC (3,4,4'-trichlorocarbanilide).
• TCC 3,4,4'-trichlorocarbanilide
• a large number of aromatic substances and ethereal oils also have antimicrobial properties.
• Typical examples are the active ingredients eugenol, menthol and thymol in clove oil, mint oil and thyme
• a natural deodorising agent of interest is the terpene alcohol farnesol (3,7,1 1-tri- methyl-2,6, 10-dodecatrien-1 -ol), which is present in lime blossom oil.
• Glycerol monolaurate has also proved to be a bacteriostatic agent.
• the amount of the additional bacteria-inhibiting agents present is usually from 0.1 to 2 % by weight, based on the solids content of the preparations.
• Natural aromatic substances are, for example, extracts from blossom (lilies, lavender, roses, jasmine, neroli, ylang-ylang), from stems and leaves (geranium, patchouli, petitgrain), from fruit (aniseed, coriander, carraway, juniper), from fruit peel (bergamot, lemons, oranges), from roots (mace, angelica, celery, cardamom, costus, iris, calmus), from wood (pinewood, sandalwood, guaiacum wood, cedarwood, rosewood), from herbs and grasses (tarragon, lemon grass, sage, thyme), from needles and twigs (spruce, pine, Scots pine, mountain pine), from resins and balsams (galbanum, elemi, benzoin, myrrh, olibanum, opoponax).
• Typical synthetic aromatic substances are, for example, products of the ester, ether, aldehyde, ketone, alcohol or hydrocarbon type.
• Aromatic substance compounds of the ester type are, for example, benzyl acetate, phenoxyethyl isobutyrate, p-tert-butylcyclohexyl acetate, linalyl acetate, dimethylbenzylcarbinyl acetate, phenylethyl acetate, linalyl benzoate, benzyl formate, ethylmethylphenyl glycinate, allylcyclohexyl propionate, styrallyl propionate and benzyl salicylate.
• the ethers include, for example, benzyl ethyl ether;
• the aldehydes include, for example, the linear alkanals having from 8 to 18 hydrocarbon atoms, citral, citronellal, citronellyl oxyacetaldehyde, cyclamen aldehyde, hydroxycitronellal, lilial and bourgeonal;
• the ketones include, for example, the ionones, isomethylionone and methyl cedryl ketone;
• the alcohols include, for example, anethol, citronellol, eugenol, isoeugenol, geraniol, linalool, phenyl ethyl alcohol and terpinol; and
• the hydrocarbons include mainly the terpenes and balsams.
• Ethereal oils of relatively low volatility which are chiefly used as aroma components, are also suitable as perfume oils, e.g. sage oil, camomile oil, clove oil, melissa oil, oil of cinnamon leaves, lime blossom oil, juniper berry oil, vetiver oil, olibanum oil, galbanum oil, labolanum oil and lavandin oil.
• the cosmetic preparations may contain, as adjuvants, anti-foams, such as silicones, structurants, such as maleic acid, solubilisers, such as ethylene glycol, propylene glycol, glycerol or diethylene glycol, opacifiers, such as latex, styrene/PVP or sty- rene/acrylamide copolymers, complexing agents, such as EDTA, NTA, alaninediacetic acid or phosphonic acids, propellants, such as propane/butane mixtures, N 2 0, dimethyl ether, CO2, N2 or air, so-called coupler and developer components as oxidation dye precursors, re- ducing agents, such as thioglycolic acid and derivatives thereof, thiolactic acid, cysteamine, thiomalic acid or mercaptoethanesulfonic acid, or oxidising agents, such as hydrogen peroxide, potassium bromate or sodium bromate.
• Suitable insect repellents are, for example, N,N-diethyl-m-toluamide, 1 ,2-pentanediol or insect repellent 3535; suitable self-tanning agents are, for example, dihydroxyacetone and/or erythrulose or dihydroxy acetone and/or dihydroxy acetone precursors as described in WO 01/85124 and/or erythrulose.
• UV-absorbers and UV-absorber combinations listed above, with SPF enhancers, such as non-active ingredients like Styrene/acrylates copolymer, silica beads, spheroidal magnesium silicate, crosslinked Polymethylmethacrylates (PMMA ; Micopearl M305 Seppic), can maximize better the UV protection of the sun products.
• Holosphere additives (Sunspheres® ISP, Silica Shells Kobo.) deflect radiation and the effective path length of the photon is therefore increased ( EP08931 19).
• Some beads as mentioned previously, provide a soft feel during spreading.
• the optical activity of such beads e.g. Micropearl M305, cans modulate skin shine by eliminating reflection phenomena and indirectly may scatter the UV light.
• Cosmetic or pharmaceutical formulations are contained in a wide variety of cosmetic preparations. There come into consideration, for example, especially the following
• skin-care preparations e.g. skin-washing and cleansing preparations in the form of tablet-form or liquid soaps, soapless detergents or washing pastes,
• - bath preparations e.g. liquid (foam baths, milks, shower preparations) or solid bath
• preparations e.g. bath cubes and bath salts
• skin-care preparations e.g. skin emulsions, multi-emulsions or skin oils
• cosmetic personal care preparations e.g. facial make-up in the form of day creams or powder creams, face powder (loose or pressed), rouge or cream make-up, eye-care preparations, e.g. eye shadow preparations, mascara, eyeliner, eye creams or eye-fix creams; lip-care preparations, e.g. lipsticks, lip gloss, lip contour pencils, nail-care preparations, such as nail varnish, nail varnish removers, nail hardeners or cuticle removers;
• foot-care preparations e.g. foot baths, foot powders, foot creams or foot balsams, special deodorants and antiperspirants or callus-removing preparations;
• light-protective preparations such as sun milks, lotions, creams or oils, sunblocks or tropicals, pre-tanning preparations or after-sun preparations; skin-tanning preparations, e.g. self-tanning creams;
• depigmenting preparations e.g. preparations for bleaching the skin or skin-lightening preparations
• insect-repellents e.g. insect-repellent oils, lotions, sprays or sticks;
• deodorant such as deodorant sprays, pump-action sprays, deodorant gels, sticks or roll-ons;
• antiperspirants e.g. antiperspirant sticks, creams or roll-ons
• preparations for cleansing and caring for blemished skin e.g. synthetic detergents (solid or liquid), peeling or scrub preparations or peeling masks;
• - hair-removal preparations in chemical form e.g. hair-removing powders, liquid hair-removing preparations, cream- or paste-form hair-removing preparations, hair- removing preparations in gel form or aerosol foams;
• shaving preparations e.g. shaving soap, foaming shaving creams, non-foaming shaving creams, foams and gels, preshave preparations for dry shaving, aftershaves or aftershave lotions;
• fragrance preparations e.g. fragrances (eau de Cologne, eau de toilette, eau de perfume, perfume de toilette, perfumee), perfumee oils or perfumee creams;
• cosmetic hair-treatment preparations e.g. hair-washing preparations in the form of shampoos and conditioners, hair-care preparations, e.g. pre-treatments preparations, hair tonics, styling creams, styling gels, pomades, hair rinses, treatment packs, intensive hair treatments, hair-structuring preparations, e.g. hair-waving preparations for permanent waves (hot wave, mild wave, cold wave), hair-straightening preparations, liquid hair-setting preparations, hair foams, hairsprays, bleaching preparations, e.g.
• hair-washing preparations in the form of shampoos and conditioners
• hair-care preparations e.g. pre-treatments preparations, hair tonics, styling creams, styling gels, pomades, hair rinses, treatment packs, intensive hair treatments, hair-structuring preparations, e.g. hair-waving preparations for permanent waves (hot wave, mild wave, cold wave), hair-straightening preparations, liquid hair-setting preparations, hair
• the final formulations listed may exist in a wide variety of presentation forms, for example: in the form of liquid preparations as a W/O, O/W, 0/W/O, W/O/W or PIT emulsion and all kinds of microemulsions,
• cosmetic preparations for the skin are light-protective preparations, such as sun milks, lotions, creams, oils, sunblocks or tropicals, pretanning preparations or after-sun preparations, also skin-tanning preparations, for example self-tanning creams.
• light-protective preparations such as sun milks, lotions, creams, oils, sunblocks or tropicals
• pretanning preparations or after-sun preparations also skin-tanning preparations, for example self-tanning creams.
• sun protection creams, sun protection lotions, sun protection milks and sun protection preparations in the form of a spray are particularly interested.
• hair-washing preparations in the form of shampoos, hair conditioners, hair-care preparations, e.g. pre-treatment preparations, hair tonics, styling creams, styling gels, pomades, hair rinses, treatment packs, intensive hair treatments, hair- straightening preparations, liquid hair-setting preparations, hair foams and hairsprays.
• hair-washing preparations in the form of shampoos.
• a shampoo has, for example, the following composition: from 0.01 to 5 % by weight of a UV absorber according to the invention, 12.0 % by weight of sodium laureth-2-sulfate, 4.0 % by weight of cocamidopropyl betaine, 3.0 % by weight of sodium chloride, and water ad 100%.
• hair-cosmetic formulations may be used: a-i) spontaneously emulsifying stock formulation, consisting of the UV absorber according to the invention, PEG-6-Ciooxoalcohol and sorbitan sesquioleate, to which water and any desired quaternary ammonium compound, for example 4 % minkamidopropyl dimethyl- 2-hydroxyethylammonium chloride or Quaternium 80 is added;
• the cosmetic preparation according to the invention is characterized by excellent protection of human skin against the damaging effect of sunlight.
• the sample is centrifuged for 30 minutes at 13000 rpm at 25°C. The supernatant is transferred into a small beaker. In case the sample is still turbid, it is filtered through a 0.2 ⁇ non-steril Membrex 25 PET filter. Clear solutions must not be filtered.
• the concentration of the substance is determined with UV/Vis-spectrometry.
• the sample may be diluted with a suitable solvent or, in case of lower concentrations, may be measured as it s.
• the concentration of the UV-spectroscopic results is measured with the extinction coefficient, which is determined independently with a solvent of similar polarity like that one used for dilution of the saturated solutions.
• the solubility can be calculated using the Lambert-Beer-Law equation.
• Neo Heliopan OS Ethylhexyl Salicylate 5.00
• Neo Heliopan OS Ethylhexyl Salicylate 5.00
• Tinosorb® S Bis-Ethylhexyloxyphenol 2.00
• Example B-1 1 O/W Lotion (Without OMC. Tinosorb M) SPF 30
• Example B-15 O/W Soft Cream (without OMC. Ti02) SPF 50
• Example B-16 Polymeric Emulsion (Tinosorb A2B) SPF 50
• Example B-17 O/W Polymeric Emulsion SPF 50
• Neo Heliopan OS Ethylhexyl Salicylate 5.00
• Tinosorb® S Aqua Polymethyl Methacrylate Sodium 10.00
• Magnesium Stearate Magnesium Stearate 1 .00
• Example B-23 W/O Cream Particulates Only SPF 50
• Titanium Dioxide Example B-24 O/W BB Cream SPF 30
• Example B-25 Water free Stick SPF 30

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• 2015
  • 2015-12-09 BR BR112017011387-2A patent/BR112017011387B1/pt active IP Right Grant
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